54 Toyota diagnostic codes on file — with the full diagnosis, repair steps, and field insights open to read free, no signup required.
Disclaimer: General reference information for trained, qualified technicians only. Codes and procedures vary by model, serial number and software version. Always follow the manufacturer's service manual and your site's safety procedures. Use at your own risk. Not affiliated with or endorsed by any manufacturer.
Find a Toyota code by searching below, or browse the table. Codes on file by system:
| Code | System | Symptom | Full fix |
|---|---|---|---|
| B1100 | SRS / Restraints | SRS Light Stays Lit / No Deployment | View fix |
| B1402 | HVAC / Climate | A/C Blows Hot / Flashing A/C LED | View fix |
| B1421 | Climate Control (HVAC) | Check Engine Light / AC Light Blinks | View fix |
| B1421 | Climate / Sensors | Stored Historical DTC in A/C Module | View fix |
| B1801 | SRS / Airbag | SRS Warning Light Solid on Cluster | View fix |
| B2799 | Immobilizer | Engine Cranks No Start / Security On | View fix |
| B279A | Anti-Theft / Immobilizer | Crank No Start / Security Light On | View fix |
| B2A60 | Climate Control (HVAC) | Passenger Side Blows Only Cold Air | View fix |
| C1200 | Braking / ABS | ABS Warning Light / 4WD Interrupted | View fix |
| C1201 | Braking | ABS/VSC Light | View fix |
| C1233 | Braking | ABS/TRAC Light | View fix |
| C1555 | Steering | Heavy Steering | View fix |
| P0045 | Air Intake | No Boost / Sluggish / Check Engine | View fix |
| P0045 | Turbocharger | Check Engine / Turbo Light / No Boost | View fix |
| P0045 | — | "Limp Home" mode; Turbo lacks "spool" sound; Significant power loss; VSC/TRC lights may trigger. | View fix |
| P0087 | Fuel System | Engine Cuts Out During Full Acceleration | View fix |
| P0087 | Fuel System | White Smoke / No Start | View fix |
| P0087 | Fuel | Engine stalls under load; Limp mode; Hard starting. | View fix |
| P0088 | — | Engine "knocking" sound; Sudden shutdown; Rail pressure gauge (if equipped) pins high. | View fix |
| P0093 | — | Severe power loss; Engine stalls under load; Large fuel leak detected warning. | View fix |
| P0093 | Fuel / HPCR | Engine Limp Mode / Cuts Out Under Load | View fix |
| P0093 | Fuel | Severe power loss; Engine may shut down while driving. | View fix |
| P0093 | Fuel System | Engine Limp Mode / Cuts Out Under Load | View fix |
| P0191 | Fuel System | Limp Mode / Surge. Engine lacks power under load; Rail pressure erratic. | View fix |
| P0304 | Ignition | Rough Run / Flashing MIL | View fix |
| P0341 | — | Long cranking time; Intermittent stalling; Tachometer "bouncing." | View fix |
| P0400 | — | Black smoke; Rough idle; Hesitation; EGR cooler whistling sound. | View fix |
| P0401 | Emissions | CEL on; Reduced power; Excessive smoke. | View fix |
| P0401 | Emissions / EGR | Engine Pinging / Hesitation at Cruise | View fix |
| P0420 | Emissions | Check Engine / Trac Off | View fix |
| P0455 / P0456 | Emissions | Fuel smell near rear; CEL after refueling. | View fix |
| P0500 | Speed | Speedo not working; ABS light on. | View fix |
| P0500 | — | Speedometer is dead; ABS light on; Automatic transmission won't shift out of 1st. | View fix |
| P0500 | Vehicle Speed | Speedometer Dead / Hard ABS Light | View fix |
| P0500 | Drivetrain | Erratic Shift / No Speedo | View fix |
| P0562 | Electrical | Alternator Lamp / Multiple False Sensor Faults | View fix |
| P0607 | Computer | VSC Light / Immediate Engine Stall | View fix |
| P0A80 | Hybrid Drive | Check Hybrid System / Performance Drop | View fix |
| P0A80 | Hybrid Drive | Hybrid System Warning / Performance Drop | View fix |
| P0A80 | Hybrid Drive | Hybrid System Warning / Performance Drop | View fix |
| P1229 | Fuel / Pump | Check Engine Solid / Severe Power Cap | View fix |
| P1264 | — | Engine misfire; Rough running; White smoke; Loss of power. | View fix |
| P1349 | VVT | Rough idle; Engine stalling at stoplights; Poor MPG. | View fix |
| P1415 / P1416 | Fuel | Hard starting in heat; Loss of power. | View fix |
| P1601 | — | Check engine light; No driveability symptoms but code won't clear. | View fix |
| P1604 | Starting / System | Engine Cranks Long / Starts and Dies | View fix |
| P1604 | Starting / Engine | Engine Cranks Long / Intermittent Stall | View fix |
| P244B | Emissions / DPF | DPF Full Warning / High Fuel Consumption | View fix |
| P2458 | — | Frequent DPF warning; Engine derate; Fuel smell in oil. | View fix |
| P2463 | Emissions / DPF | DPF Warning Lamp / Limp Mode Active | View fix |
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